Patent US3554860A successfully refreshed from Google Patents.
US3554860A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organic fiber-anthophyllite fiber sheet as a friction material
Assignee: Raybestos Products Co
•
Filing: 1967-03-30
•
Granted: 1971-01-12
•
Expires: 1987-03-30
Abstract
Abstract PAPER BASE FRICTION MATERIAL AND WET FELTING METHOD FOR PRODUCING SAME COMPRISED OF A POROUS, FLEXIBLE SHEET OF A MIXTURE OF 40% TO 60% ORGANIC AND 40% TO 60% OF ANTHOPHYLLITE ASBESTOS FIBERS, THE PAPER BASE FURTHER INCLUDING RESIN BINDER INCORPORATED DURING FELTING OR SUBSEQUENT THERETO. THE PAPER IS ULTIMATELY BONDED TO A METAL MOUNTING MEMBER WHEREBY IT IS USEFUL AS FRICTION MATERIAL PARTICULARLY IN OIL SUCH AS IN AUTOMOTIVE AUTOMATIC TRANSMISSIONS.
Inventors
- 👤 Arthur J Lacroix Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:59
CPC Classifications
F; F16; F16D; F16D69/00; F16D69/02; F16D69/021; F16D69/022
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |